Constitution of an extensive experimental database for the challenge of spalling modelling

This study addresses the challenges of understanding the complex mechanisms of concrete behavior under fire, particularly damage and spalling.Using a standardized mortar, extensive thermal, mechanical, transport and microstructural characterizations were conducted to provide input data for a thermo-hygro-chemo-mechanical model.Preliminary results highlight the impact of elevated temperatures on the integrity of mortar, providing insight into the degradation mechanisms that affect its structural performance under thermal stress.